Welded Tubes is a world class producer of high volume, small diameter, tight tolerance tubing. For more than 60 years we have been exceeding our customers expectations in quality and responsiveness.

Welded Tube Benefits:

  • Electric Resistance Welding (ERW) - is a high productivity process yielding a clean weld, even stronger than the parent material
  • Strength - cold forming gives our tubing a higher yield and tensile strength than the steel from which it is made
  • Less Processing - the close dimensional tolerances of our tubing allows its use for mechanical parts with minimal downstream processing
  • Cost-Effective - less processing than other types of mechanical tubing provides cost advantages for less-demanding applications
  • Wide Size Range - our tubing is available in a broad range of OD and wall thickness dimensions
  • Variety of Shapes - we offer round, square and rectangular shapes and a variety of special shapes to meet your needs

Available Grades of Steel

Prototypes/Samples See our process
  • 1008
  • 1010
  • 1015
  • 1018
  • 1020
  • 340XF
  • 420YF
  • 490XF
  • 550XF
  • DP600
  • DP800
  • Other grades available, please contact us.

Tube Sizes and Shapes

Round Tubing

Please select tubing size from the sizes shown as you begin to enter your dimensions.

Tube Size (O.D.)
Nominal Thickness
in Go!

mm Go!

* If you do not see the size you are looking for listed above, please contact us for a quote.

Square Tubing

Please select tubing size from the sizes shown as you begin to enter your dimensions.

Tube Size (O.D.)
Nominal Thickness
in Go!

mm Go!

* If you do not see the size you are looking for listed above, please contact us for a quote.

Rectangle Tubing

Please select tubing size from the sizes shown as you begin to enter your dimensions.

Tube Size (O.D.)
Nominal Thickness
in Go!

* If you do not see the size you are looking for listed above, please contact us for a quote.


Wall Thickness Tolerances 3/8" to 2-1/2" Diameter

InchesBWG+/- Range
0.028 22 026/.029
0.035 20 032/.035
0.042 19 040/.044
0.049 18 044/.049
0.058 17 055/.059
0.065 16 060/.065
0.07 15 .065/.070
0.083 14 .079/.085
0.095 13 .095/.105
0.109 12 .098/.113
0.12 11 .120/.130

Length Tolerances

Type of CutLength (Inches)*/- Inches
Grieder 4-108 +/-.010
Grieder 108-240 +/-.062
End-Cond-(22.5°) 4-108 +/-.010
Brehm-(Vulcan) 5/8/1960 +/-.015
Punch-Cut-RML +/-.500 +/-.500
Notes:
  1. These tolerances may be much more restrictive than A5l 3-00 TYPE2 specifications.
  2. Any requests for tolerances that do not completely meet those established on these pages must be approved by Design Review.
  3. Certain dimensional features are a function of the "As Welded" tube manufacturing process and as such are not inspected on a routine basis. Process inspection data showing compliance may or may not be available. Exact test data for compliance to yield, tensile and elongation requirements of the actual tube can be obtained by test at the customer's expense.
  4. I.D. flash rolled to .005 max (see Round Tube Availability table)
  5. I.D. flash removal (1.D. ranges from .826" to 2.265")

Selected Tolerances, Outside Dimensions of Square & Rectangle Tubing per ASTM, Table 13

Largest Nominal
Outside Dimension
WallOutside Tolerance at
All Sides at Corners
3/8" X 5/8" .020 - .083 +/- .004
Over 5/8" -1-1/8" .022 - .156 +/- .005
Over 1-1/8" -2.000" .025 - .195 +/- .006

Selected Commercial Radii of Corner of Square & Rectangle as per ASTM, Table 14

Tighter Tolerances Available Upon Request
Diameter
(Round)
Wall Thickness Radius Tolerance
(Inches)
Inches BWG
1/2 - 1-1/2 .028 22 1/32 - 1/16
1/2 - 2-1/2 .035 20 1/32 - 1/16
1/2 - 2-1/2 .049 18 3/64 - 5/64
1/2 - 2-1/2 .065 16 1/16 - 7/64
3/4 - 2-1/2 .083 14 5/64 - 1/8

Selected Hardness Limits and Tensile Properties for Welded Tubing (ASTM A513), Table S 5.1

Grade Yield Strength ksi (MPa) Min. Ultimate Strenth ksi (MPa) Min. Elongation in 2" or 50mm, % Min. RB Min. RB Max.
1008 30 (207) 42 (290) 15 50 -
1020 38 (262) 52 (359) 12 62
340XF 49 (340) 64 (440) 22 - -
420YF 61 (420) 75 (520) 16 - -
550YF 80 (550) 94 (650) 12 - -

Need a Quote? Have a Question?

Contact your Welded Tubes sales Associate

440.437.5144

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